ENGLISH
OWNER’S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating your set and retain it for future reference.
Ceiling Suspended
Original instruction
ARNU18GV1A4 ARNU24GV1A4
ARNU36GV2A4 ARNU48GV2A4
P/NO : MFL70269001 |
www.lg.com |
REV.00_120517
Ceiling Suspended Convertable Indoor Unit Owner’s Manual
TABLE OF CONTENTS
Safety Precautions................. |
3 |
Prior to Operation .................. |
6 |
Maintenance and Service ...... |
7 |
Before you Call for |
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Service.................................. |
9 |
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
■Staple your receipt to this page in the event you need to prove date of purchase or to issue warranty.
READ THIS MANUAL
Inside you will find many helpful hints on how to use and maintain your air conditioner properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner.
You'll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call for service at all.
PRECAUTION
•Contact the authorized service technician for repair or maintenance of this unit.
•Contact the installer for installation of this unit.
•The air conditioner is not intended for use by young children or invalids without supervision.
•Young children should be supervised to ensure that they do not play with the air conditioner.
•When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.
•Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.
2 
Indoor Unit
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.
WARNING |
This symbol indicates the possibility of death or serious injury. |
CAUTION |
This symbol indicates the possibility of injury or damage to properties only. |
Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
WARNING
Installation
Do not use a defective or |
For electrical work, contact a |
Always ground the product. |
underrated circuit breaker. Use |
licensed electrician. |
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this appliance on a dedicated |
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circuit. |
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• There is risk of fire or electric |
• Do not disassemble or repair the |
• There is risk of fire or electric |
shock. |
product. There is risk of fire or |
shock. |
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electric shock. |
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Install the panel and the cover |
Always install a dedicated cir- |
Use the correctly rated breaker |
of control box securely. |
cuit and breaker. |
or fuse. |
• There is risk of fire or electric |
• Improper wiring or installation |
• There is risk of fire or electric |
shock. |
may cause fire or electric shock |
shock. |
Do not modify or extend the |
Do not install, remove, or re- |
Be cautious when unpacking |
power cable. |
install the unit by yourself (cus- |
and installing the product. |
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tomer). |
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• There is risk of fire or electric |
• There is risk of fire, electric shock, |
• Sharp edges could cause injury. |
shock. |
explosion, or injury. |
Be especially careful of the case |
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edges and the fins on the con- |
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denser and evaporator. |
For installation, always contact |
Do not install the product on a |
Do not turn on the breaker or |
a licensed electrician. |
defective installation stand. |
power under condition that |
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front panel, cabinet, top cover, |
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control box cover are removed |
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or opened. |
• There is risk of fire, electric shock, |
• It may cause injury, accident, or |
• Otherwise, it may cause fire, elec- |
explosion, or injury. |
damage to the product. |
tric shock, explosion or death. |
ENGLISH
Owner’s Manual 3
Safety Precautions
Be sure the installation area does not deteriorate with age.
•If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.
Use Inert (nitrogen) gas when doing leakage test.
Do not compress air or Oxygen and Do not use
Flammable gases. Otherwise, it may cause fire or explosion.
• There is the risk of death, injury, fire or explosion.
Operation
Take care to ensure that power cable could not be pulled out or damaged during operation.
•There is risk of fire or electric shock.
Do not place a heater or other appliances near the power cable.
•There is risk of fire and electric shock.
When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.
•Do not use the telephone or turn switches on or off.
There is risk of explosion or fire
Do not open the panel of the product during operation.
•There is risk of physical injury, electric shock, or product failure.
Turn the main power off when cleaning or maintaining the product.
•There is risk of electric shock.
Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened.
•Otherwise, it may cause fire, electric shock, explosion or death.
Do not place anything on the power cable.
•There is risk of fire or electric shock.
Do not allow water to run into electric parts.
•It may cause There is risk of fire, failure of the product, or electric shock.
If strange sounds, or smell of smoke comes from product.
Turn the breaker off or disconnect the power supply cable.
•There is risk of electric shock or fire.
When the product is soaked
(flooded or submerged), contact The installing contractor.
•There is risk of fire or electric shock.
Take care to ensure that nobody could step on or fall onto the outdoor unit.
•This could result in personal injury and product damage.
Do not touch(operate) the product with wet hands.
•There is risk of fire or electrical shock.
Do not store or use flammable gas or combustibles near the product.
•There is risk of fire or failure of product.
Stop operation and close the window in storm or hurricane.
If possible, remove the product from the window before the hurricane arrives.
•There is risk of property damage, failure of product, or electric shock.
Be cautious that water could not enter the product.
•There is risk of fire, electric shock, or product damage.
Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open.
•Moisture may condense and wet or damage furniture.
4 
Indoor Unit
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Safety Precautions |
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CAUTION |
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■ Installation |
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Always check for gas (refrigerant) leakage |
Install the drain hose to ensure that |
Keep level even when installing |
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after installation or repair of product. |
water is drained away properly. |
the product. |
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• Low refrigerant levels may |
• A bad connection may cause |
• To avoid vibration or water leak- |
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cause failure of product. |
water leakage. |
age. |
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Use two or more people to lift and transport the product.
• Avoid personal injury.
■ Operation
Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)
•This could harm to your health.
Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
•There is risk of fire, electric shock, or damage to the plastic parts of the product.
Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.
•There is risk of damage or loss of property.
Do not touch the metal parts of the product when removing the air filter. They are very sharp!
Do not block the inlet or outlet of air flow.
•It may cause product failure.
Do not step on or put anyting on the product. (outdoor units)
• There is risk of personal injury. |
• There is risk of personal injury |
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and failure of product. |
Always insert the filter securely. |
Do not insert hands or other objects |
Do not drink the water drained |
Clean the filter every two weeks |
through the air inlet or outlet while the |
from the product. |
or more often if necessary. |
product is operated. |
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• A dirty filter reduces the efficiency of |
• There are sharp and moving parts |
• It is not sanitary and could cause |
the air conditioner and could cause |
that could cause personal injury. |
serious health issues. |
product malfunction or damage. |
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Use a firm stool or ladder when cleaning or maintaining the product.
•Be careful and avoid personal injury.
•This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
ENGLISH
Owner’s Manual 5
Prior to Operation
Prior to Operation
Preparing for operation
1.Contact an installation specialist for installation.
2.Use a dedicated circuit.
Usage
1.Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time.
2.Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices, food, pets, plants, and art objects). Such usage could damage the items.
Cleaning and maintenance
1.Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling sharp metal edges.
2.Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation, leading to possible electric shock.
3.When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the unit.
Service
For repair and maintenance, contact your authorized service dealer.
6 
Indoor Unit
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